#37A3DA#37A3DA

#37A3DA is a light, vivid cyan. Relative luminance 0.321; OKLCH L 67.9% C 0.125 H 235.5°. Best body text is #000000 at 7.41:1 contrast (WCAG AA passes).

Color values

HEX	#37A3DA
RGB	rgb(55, 163, 218)
HSL	hsl(200, 69%, 54%)
HSV	hsv(200, 75%, 85%)
CMYK	cmyk(74.8%, 25.2%, 0%, 14.5%)
CIE-LAB	lab(63.40, -12.24, -36.59)
CIE-LCH	lch(63.40, 38.59, 251.51°)
OKLab	oklab(67.88% -0.0709 -0.1032)
OKLCH	oklch(67.88% 0.125 235.5)
XYZ	xyz(27.3226, 32.0653, 71.0653)
Luminance	0.3207 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37A3DA #DA6E37

analogous

#37DABF #37A3DA #3751DA

triadic

#37A3DA #DA37A3 #A3DA37

tetradic

#37A3DA #BF37DA #DA6E37 #51DA37

square

#37A3DA #BF37DA #DA6E37 #51DA37

split-complementary

#37A3DA #DA3751 #DABF37

monochromatic

#185C7F #2182B3 #37A3DA #6BBBE4 #9ED3ED

Accessibility & contrast

On white

2.83

#37A3DA on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.41

#37A3DA on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #37A3DA

7.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37A3DA	#FFFFFF	#000000	##000000
##37A3DA	1.00	2.83	7.41	7.41
#FFFFFF	2.83	1.00	21.00	21.00
#000000	7.41	21.00	1.00	1.00
##000000	7.41	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#88A2DD

Deuteranopia (green-blind)

#7293D9

Tritanopia (blue-blind)

#00B1B6

Achromatopsia (no color)

#999999

Design tokens & code

CSS

--color: #37a3da;
/* rgb */ color: rgb(55, 163, 218);
/* oklch */ color: oklch(67.9% 0.125 235.5);

Tailwind

colors: {
  custom: {
    50: '#84bee5',
    500: '#37a3da',
    950: '#000000',
  },
}

SCSS

$custom: #37a3da;
$custom-light: #84bee5;
$custom-dark: #000000;

JSON

{
  "hex": "#37a3da",
  "rgb": {
    "r": 55,
    "g": 163,
    "b": 218
  },
  "hsl": {
    "h": 200.245,
    "s": 68.776,
    "l": 53.529
  },
  "oklch": {
    "l": 0.67885,
    "c": 0.12519,
    "h": 235.5
  },
  "luminance": 0.32069
}

Semantic roles & 50–950 ramp

primary

#37A3DA

secondary

#D9AB93

accent

#773CEC

background

#F8FBFE

surface

#F0F6FC

border

#CBD0D5

text

#0C1216

muted

#7D8184

Preview Lab

Preview with #37A3DA

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →